I had little idea what it would look like when I first started experimenting with window managers, but it was Paul Fisher's initial mock-ups and font designs which steered things towards the Mac "look". I was just happy to have some guidance and help regarding the visuals, since I was too busy with code to design fonts. But it's clear that Paul took a lot of design cues from System 1-7, and this led me to study those same GUIs closely, although I diverged from that when it came to the tab controls on the Profiler (task manager). But yeah: homage it is, and it's also practical, since it looks good at such a low resolution.